Question

evaporation definition illustrate with an example that evaporation causes cooling out of boiling and evaporation, which is surface phenomenon? explain

Answer 1

Answer :

Evaporation is the phenomenon in which a liquid is converted into gas at a temperature below its boiling point at atmospheric pressure.

Drying of clothes and cooling of hot tea/milk kept open in a glass are due to evaporation.

Answer 2

The change of liquid into its vapour form at any temperature point is called as evaporation. Evaporation is a surface phenomena.

» The conditions that increases the rate of evaporation are :-

→ Increase in Temperature :- The increase in temperature makes evaporation faster.

→ Increase in Surface area :- Increasing the surface area also makes evaporation faster.

→ Increase in wind speed :- Increasing the wind speed increases evaporation rate.

→ Decreasing humidity :- Decreasing humidity increases the rate of evaporation for water.